- cincinnati



sept. z8 ,1926. .H. LANDSIEDEL DESIGNATING COLUMN MECHANISM OR ADDNGMACHINES Fglled May 31, 1923 3 SheetsQSheet 1 I /N VENTO/e A TTORN Sept.28 1926; 1,601,398

H. "LANDSIEDEL DESIGNAT-ING COLUMN MECHANISM FOR ADDING MACHINES FiledMay 31. 192:5v s sheets-sheet 2 0 f//I l. //I

1N VNiToR I Sept. 28 1926.

H. LANDSIEDEL DESIGNA'I'ING COLUMN MEGHANISM FOR ADDING MACHINES 1923 3Sheets-Sheet giled May 3l /N VEN TOR B H /QA Troie/v5 i u n PatentedSept. 2S, 1926.

n arras HARRY LANDSIEDEL, OF CINCINNATI, OHIO, ASSIGNOR TO THE DALTONADDING MACHINE COMPANY, GF NOBIVOOD, CINCINNATI, OHIO, A CORPORATION OFOHIO.

kDESIGN'A'IIhTGr-COIUIVIIBT MECHANISIVI FOR ADDING MACHINES.

Application filed May 31,

This invention relates to means adapted for use in connection withadding machines of well known type whereby one of the type. i

carrying racks or sectors may be used to carry types for printingnumeral characters such as fractions which are accumulated into themachine or designating characters which are not required to beaccumulated and added and when used inthe latter manner the accumulatingdevices are omitted. rlhe designating column mechanism is caused tofunction, when required, by manipulation of the keyboard which permitsthe desired designating stops to be set to control the amplitude ofmovement of the designating column sector Which is used in conjunctionwith the usual sectors and key controlled stops which function in a wellknown manner in the listing, accumulating and totaling of items. Theprovision of the designating column mechanism in no way interferes withthe regular functioning of the adding machine, and makes it possible touse the designating column for handling fractions which are accumulatedand totalized in conjunction with the whole numbers which are added inthe usual manner. y f

Other objects will appear from a detailed description of the invention,which consists in the features of construction and combinations of partshereinafter described and claimed.

In the drawings:

Figure 1 is al sectional elevation of the well known Dalton addingmachine showing the general relation of the various parts whichconstitute this invention;

Fig. 2 is a rear elevation of the same;v

Fig. 3- is a plan view of the stop carriage locking mechanism;

Fig. 4 is a rear elevation of the same;

Fig. '5 is a plan view of the designating column latch and releasemechanism;

Fig. 6 is a front sectional elevation of the stop carriage, keybartappet and heels of the regular and designating racks in contact withthe stops; f

Fig. 7 isa plan view of the stop carriage locking mechanism withassociated parts;

Fig. 8 is a side view, taken' from the left side of the machine asviewed from the front, showing the designating column latchand thesubtraction release member; and

Fig. 9 is a side view from the same side the machine showing the vtotalrelease i923. serial No. eli-2,401.

member for releasing a designating column latch.

No attempt will be made to describe the construction and mode ofoperation of the various parts of an adding` machine to which thisdevice isapplied, since the construction and mode of operation are wellknown to those skilled in the art being in general similar to thoseshown 'in Hopkins Patent No. 1,089,130. Only those portions of astandard machine will be specifically referred to which are intimatelyassociated with the mechanism constituting the present invention.

Since the designating column mechanism of the present invention can beused for the purpose of adding fractional units, and since, when soused, this mechanism must be intimately co-related to and harmonizedwith the standard mechanism for handling whole numbers, the presentdescription will be directe-d primarily to the use of the designatingcolumn mechanism for fractional `purposes with the understanding,however, that the same mechanism, with certain parts omitted, can beutilized for designating purposes only if such use is desired.

The machine as a whole comprises a casing 10, a traveling stop carriage11, a platen .12, type carriers 13, associated racks 14, and addingwheels 15, which parts are associated ywith the necessary actuatingmechanism in a manner fully understood by those skilled in the art. I

As viewed from the front of the machine, the designating columnmechanism occupies the right hand position and the type sector with itsassociated rack and adding wheel, shown in Fig. 1, may be considered asthe designating column train of mechanisms designated to function in thelisting, accumulating and totalizi-ng of fractions or listing only ofdesignating symbols. For purposes of illustration, it may be assumedthat provision is made for fractions of one eighth or for the employment0f eight designating symbols as the case may be, and for this purpose,it will be observed that the adding wheel shown is provided with buteight teeth instead of ten which is the usual number employed Vin thehandling of whole numbers.

AThe associated sector and rack are pivoted on a shaft 16 which alsocarries the regular group of sectors and racks and these associatedelements are adapted to advance to the printing line, when releasedunder the influence of springs 17, connecting the heel 1T ot the sectorwith a lined portion otl the machine. The heel 17a coacts With a heel1st on the rack through the medium ot a .spring 1l", and the associatedrack and sector are connected by the provision ot a pin he extendinglaterally trom the rack into a slot 1l in the adjacent sector, as iscommon in the type of machines to which the present `invention pertains,Wiich lost motion connection is necessary to permit the requiredmovement ol the rack when carrying, as set forth in the Hopkins Pat entNo. 1,030,123 rlhe movement ot the designating sector rack is limited bythe provision ol an inturned heel 1S which will be stopped by anelevated stop 19 in the transversely movable carriage 11, which moves'from right to lett and trom order to order with the regular operationot the machine. Since the fractions or designating symbols Will be setup after the Whole numbers have been introduced into the stop carriage,the right hand row oi' stops in the stop carriage will also constitutethe row which co-acts with the designating column. mechanism, and thisrow will register with tappets 2O on the rear ends ot key levers 21(Fig. 6) which make suitable connection With keys, not shoivn, occupyinga convenient or appropriate position on the keyboard in association withthe usual keys which control the introduction ot Whole numbers as shownin Hopkins Patent No. 1,039,130. A depression of one ot' the symbol orfractional keys ivill litt a tappet and raise the intended stop in amanner identical with that observed in the setting of stops by keysrepresenting Whole numbers.

tt is evident, however, that in introducing a traction or designatingsymbol, it is necessary to block the -turther movement oit the stopcarriage -from order to order, which attends the pressing ot a regularnumeral key, since the traction or symbol constitutes the ultimate righthand constituent ot the item being introduced, and mechanism forblocking such carriage movement Will noiv be described.

ln preparation for `the introduction ot a traction or symbol, adesignating column key is depressed, which key is mounted upon an arm L3rigid on a transverse rock shaft 2111, which also carries an arm 25pivotally connected with a link 2G, the rear end ot' which is slidablyinounted Within a fixed bracket plate 2 eritendingl cross Wise ot themachine near the rear side thereof. The depression ot the designatingcolumn key Q2 causes a 'forward sliding movement et the link Q0, whichis provided on its upper edge near its rear end with a beveled camvelevation 28 which is positioned to engage a pin 29 on a latch linger30 hooked at its forward end to engage a notch 31 near the rear upperedge ot' the rack bar 14;- immediately above the heel thereof.

As shown in TEig. 5, the latchl linger 30 constitutes partot' a U-shapedbail 32 which terminates at its opposite end in a linger 33, the bail asa Whole being pivoted on a rod 3l, the ends of which are entered throughand held Within the arms 235 of a tit-ed bracket 3G secured to thebracket plate 2T. A spring 37 secured to a stud 38 at its upper end andto the cross connecting portion ot the bail at its lower end serves toexert a doivnivard thrust on the 'forward end ot the bail and to holdthe latch linger normally in engagement with the notch 31 on the rackbar until litted by the cam face 2S on the link 2G. The bail lingercarries an outwardly projecting stud 39 which is adapted to be li't'tedeither by the actuation ot the subtraction release mechanism, ot Fig. 8,or by the total release mechanism ot Fig. 9 in a manner presently to bedescribed, so that the latch tor the designatingl column rack will bereleased when any one ot the three mechanisms mentioned is set inoperation.

The lorivard movement ot the link 20 also actuales means for blockingthe escapement ot the stop carriage, which means will nonv be described.T he rear end ot the linli. 26 abuts against an arm 41,0 mounted at 'theupper end ot a vertical rock shaft 4.1 journaled at its upper endthrough the bracket plate 27 and at its lower end through a loiverbracket 27 (see Fig. 1), and the rock shaft near its lower Aend carriesa laterally projecting lower arm l2 provided with a depending pin t3which engages the heel ot a pawl ll-l 'Freely pivoted upon the rockshaft. The heel ot the paivl has secured thereto a spring l5 which holdsthe paivl under tension against the pin 48, so that as the latter isWithdrawn, the paivl will tollow the pin and cause the nose Llli ot thepaivl to advance into the path ol movement ol a ratchet plate 17 securedto the rear side ot the transversely movable stop carriage, as indicatedin Figs. 3 and 7. Thus when the designating column key Q2 is depressed,the designating column rack and sector will be unlocked and lree toadvance to the limit ot movement unless arrested by a subsequentlypositioned stop in the stop carriage and at the same time theescapen'ient ot the stop carriage will be arrested by the projection otthe paivl.

Then the paWl has been moved to arresting position, it will be locked bythe mechanism shown in Fig. 3, which includes a latch lever 48 pivotedon a stud all) in close proximity to the paul 1111, which latch lever isprovided withV a depending tongue 50 adapted to engage with a notch 51:termed fwill spring into in the heel of the pawl when theV latter has.

been moved to position tov arrest the escapement of the carriage. rlhelatch l lever is acted upon by a spring 52, so that as soon as the pawlhas been actuated, the tongue 50 position and prevent release of thepawl.

The pawl, however, is provided with a finger 53 which occupies aposition within the line of movement of a rear plate 54 secured to thecarriage, so that as the carriage is restored by the means regularlyemployed in a machine of this character, the plate will be brought intocontact-with the latch finger, and the latch released from engagementwith the pawl upon which the superior tension of a spring 55 secured tothe link 26 and exertn ing tension towards 'the rear, will cause thelatter to move rearwardly against the combined tension of the pawlspring ,t5 and a similar springy 56, which engages the arm 40 and holdsthe same in close abutment to the rear end of the link 26.

The subtraction release mechanism of Fig. 8 comprises a link 57 whichmoves forward (to the right in Fig. 8) as the subtraction key isdepressed and carries with it the depending bent arm 58 provided with acam end 59 which bears against the laterally projecting pin 39 on thebail arm 33, which movement results in a lifting of the latch end of thebail and a release of the rack 14.

When either the total or sub-total key is depressed, a link 60 (Fig. '9)will be moved to the rear, which link carries at its rear end a plate 61provided with a cam extension 62 bearing against the forward side. ofthe same pin 39, so that movement of these parts,` like a movement ofthe subtraction mechanism, will elfecta lifting of the active end of thebail and a release of the rack.

`Where the designating column mechanism is used for the purpose ofimprinting symbols rather than fractions, the arms 58 and 6l aredisconnected by removing the screws 63 and 64 respectively, and thedesignating column and adding wheel is also removed, so that a releaseof the rack in these circumstances can be effected only by thedepression of the designating column key, so that the type. sector alonewill function to imprint the desired symbol.

In operation, when it is desired to utilize the mechanism hereindescribed for the purpose of imprinting and accumulating fractions, themachine will be Operated in the usual manner to set up stopsrepresenting whole numbers in an item after which the designating columnkey will be depressed to release the corresponding rack and' printingsector and to lock the carriage against escapement. Thereafter, thefractional key is depressed to set up a stop in that line of stops inthe carriage which, for the time being, represents the intended fractionafter carrying` from fractions into whole numbers.

The returnof the carriage to its right hand `position will automaticallyrelease the escapement latch, so that in setting up a new item, thecarriage will be free to escape until again locked by the action of thedesignating column key.

The device as a whole is one which is adapted for use in associationwith and as a part of the regulation adding machine without anysubstantial change or modification in the construction and arrangementof the machine as a whole and without adding in any noticeable degree tothe bulkiness kof the machine.

I claim: i

l. In designating column mechanism for adding machines in combinationwith a printing device and associated rack and an adding wheel, keycontrolled means for un.- latching the printing device and rack, a stopcarriage relatively movable with respect to the rack, and means forpreventing relative movement of said parts as incidental to theintroduction of an item into the designating column, and meansassociated with the carriage for releasing said carriage arresting meansduring therestoration of the carriage to normal position, substantiallyas described.

2. In designating column mechanism for adding machines in combinationwith associated printing mechanism, a rack', and an adding wheel, a stopcarriage transversely movable with respect to said members and providedwith stops adapted to be set to limit the movement of the printingmechanism and rack when released, key controlled mechanism adapted, whenactuated, to unlatch the printing mechanism and rack and lock thecarriage against escapement during the introduction of an item into thedesignating column, and means associated with the carriage for releasingsaid carriage arresting means during the restoration of the carriage tonormal position, substantially as described.

3. In designating column mechanism for niovable stop carriage providedwith stops adapted to liinit movement of the type sec'- tor and rackwhen nnlatched, a carriage escapenlentloek, a designating column keyadapted when operated to release the latch and set the lock to prevent'further escapement of the carriagel and means carried by the carriageand: adapted on a restoring movement ol the carriage to restore the lockto non-locking'- position, and total mechanism adapted, when actuated,to eiect an unlatchinp; movement of the latch, substantially asdescribed.

l. Ink designating coluinn mechanism for addingf machines thecombination of a pivoted type sector, an associated pivoted rack movabletherewith, a bail having a latch arni normally in latching engagementwith the rack, a lifting` arin provided with an outstanding pini adesignating column key, a link connected with said key, and adapted Whenmoved to litt said bail and disengage said latch, a. transverselyInovable stop carriage provided with stops in co-acting relation withsaid rack, an escapa ment ratchet on said rack, a paivl adapted toengage said ratchet, and connections for said pawl adapted to engage thekey controlled link for simultaneously releasing' said rack and locking`said eseapenient` and total devices in engagen'ient with the outstandingpin on said lifting arin and adapted when actuated to litt said bail ande'fi'ect release of said latch, substantially as described.

HARRY LANDSIEDEL.

